Any good tips on what to use when trying to retrieve targets under shallow surf, on a rocky beach. The rocks are small, but densely packed. I normally hunt using the Stealth Scoop - it is an excellent beach scoop for most conditions; however, on this section of the beach, because of the rocks and it's large size, it's like trying to use a shovel to dig pavement. I just ordered an inexpensive camping fold able pick and shovel to try it out. Any ideas?